College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China.
School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
Chempluschem. 2020 Oct;85(10):2290-2297. doi: 10.1002/cplu.202000492. Epub 2020 Sep 23.
Microbial electrolysis cells (MECs) is one of the promising biohydrogen production technologies for which low-cost cathode materials are required and developed to propel the rapid development of MECs. Herein, the preparation of a low-cost Ce -Ni-Y composite is reported by using Y zeolite as carrier loaded with nickel (Ni) and cerium (Ce) as active components and its prominent electrochemical performance. The XPS analysis reveals that strong electronic interaction between Ni and Ce makes a great contribution to the electrochemical performance enhancement. The Ce -Ni-Y with a peak current density of 39.8 A⋅m in LSV, Tafel slope of 40.81 mV⋅dec , ECSA of 34.3 and hydrogen yield of 0.312±0.013 m ⋅m d are significantly superior to that of its parent Ni-Y counterpart and rival the performance of commercially Pt/C, which renders it a very promising hydrogen evolution catalyst for MECs.
微生物电解池（MEC）是一种很有前途的生物制氢技术，需要开发低成本的阴极材料来推动 MEC 的快速发展。本文报道了一种以 Y 沸石为载体，负载镍（Ni）和铈（Ce）作为活性成分的低成本 Ce-Ni-Y 复合材料的制备及其突出的电化学性能。XPS 分析表明，Ni 和 Ce 之间的强烈电子相互作用对电化学性能的提高有很大贡献。Ce-Ni-Y 的峰值电流密度为 39.8 A·m 在 LSV 中，Tafel 斜率为 40.81 mV·dec，ECSA 为 34.3，氢气产量为 0.312±0.013 m ⋅m d，明显优于其母体 Ni-Y 对应物和竞争对手商用 Pt/C，这使其成为 MEC 非常有前途的析氢催化剂。
